"Is a society, we don't pay much attention to nutrition information when we eat out."

"A U.S. Department of Agriculture report estimates just 8 percent of Americans use nutritional information when deciding what to order."

"But that could change soon."

"As we've reported, the Affordable Care Act will require chain restaurants with 20 or more locations to post calorie information on menus or menu boards."

"And what might make us pay attention? Well, researchers at Johns Hopkins Bloomberg School of Public Health have a theory."